Figure 6-1 Connection Patterns For Uus Transmission - NEC NEAX 2400 IPX Programming Manual

(c) The connection patterns for the UUS transmission are shown in
Pattern 1: The ISDN tandem connection
Note: Either ISDN(a) or ISDN(b) is Q-SIG/IS-11572 interface.
PBX
Pattern 2: The interface used in the terminating office is Q-SIG/IS-11572.
ISDN
terminal
Pattern 3: The interface used in the originating office is Q-SIG/IS-11572.
PBX

Figure 6-1 Connection Patterns for UUS Transmission

Q-SIG (CIRCUIT SWITCHED BASIC CALL - ETSI VERSION)
PBX
ISDN(a)
ISDN
message
(UUS)
PBX
ISDN
message
(UUS)
PBX
Q-SIG/
IS-11572
ISDN
message
(UUS)
NDA-24305
Figure 6-1.
PBX
ISDN(b)
ISDN
message
(UUS)
PBX
Q-SIG/
IS-11572
ISDN
message
(UUS)
ISDN
ISDN
terminal
message
(UUS)
CHAPTER 6
Page 291
Revision 1.0